On the Cover
Volume 104, Number 5
In an election season, prospective voters take their impressions of the candidates not only from what they say but also on the basis of other aspects of their presentation, such as intonation, gestures, and appearance. Recent studies have identified another trait that contributes subtly but significantly to voters’ impressions....
Candidates’ vocal characteristics influence voters’ attitudes toward them.
Easily hidden in imported plants, some land flatworms are conquering the world.
A mathematical method of proof challenged traditional beliefs.
In the Arctic Circle, the Svalbard Global Seed Vault is not waiting for doomsday, but is a secure backup for crop diversity.